Introducing Siri: DARPA’s Ghost in Apple’s Machine

Introducing Siri: DARPA’s Ghost in Apple’s Machine: "SRI = Stanford Research Institute. It turns out that Apple’s Siri used to be SRI’s Siri, and SRI’s Siri is… Are you ready? A spinoff of DARPA’s PAL (Perceptive Assistant that Learns) program, which SRI called CALO (Cognitive Agent that Learns and Organizes)."